Hello, I'm new here so please don't fault me too much if I don't know proper etiquette.

I'm trying to figure out where ln(64) comes from when simplifying 12(3sqrt5/8 - ln(sqrt5/2 + 3/2)/2)-0

the simplified version yields 1/2(9sqrt5/2+ln(64)-6ln(3+sqrt5)). It yields the correct answer in my overall problem but I can't figure out where the ln(64) comes from when I'm simplifying

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